Haven't girly things always turned-on manly things since time began?

I'd just want to add (before we digress too far), that as a matter of good practice, I'd never hang any power sucking switching component on the same supply line as that for your PIC (and that goes for your vibrator motor!). That +5v (3.3v) line is sacred. Your PIC and some other logic and that's it. All your Power devices get hung on the raw input supply, not on the nice regulated PIC supply. In following that rule, I've NEVER experienced any problems switching power devices.

Big Power Relays need a big magnetic field to slam shut their contacts in order to carry Amps and things... and a big magnetic field unfortunately can only be generated by a current which a PIC can't provide. And if you did, then the induced back-emf and spikes means you'll have to significantly filter your PICs supply to stop it tripping out.

Take my advice... NO power devices on the same supply line as your PIC.